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Detection of Toxigenic Fungi Associated Some Dried Fruits

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Last updated: 29 Dec 2024

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Abstract

Contamination of agricultural and food products by some fungal species that produce
mycotoxins can result in unsafe food and feed. Since dried fruits are good sources of sugars
and other nutrients, they are susceptible to mold contamination and consequent mycotoxin
production. The occurrence of toxigenic fungi in dried apricots, figs, and grapes was
surveyed in this study. Fungal frequency and their ability to produce mycotoxin were
studied. The obtained results presented that, the isolation of fungi from dried Apricots, Figs,
and Grapes yielded 308 fungal isolates. Total fungal count isolated from dried apricot fruit
samples yielded 128 fungal isolates equal to 41.6% followed by dried grape samples which
gave 106 fungal isolates (34.4%) and dried fig fruit samples resulted in 74 fungal isolates
equal to 24.0%. On the other hand, five fungal genera were identified from dried apricot
fruits as Alternaria, Aspergillus, Fusarium, Penicillium, and Rhizopus, where Aspergillus
niger had the highest fungal frequency (50.78%). Four fungal genera were identified from
dried fig fruits as Aspergillus, Fusarium, Penicillium, and Rhizopus. Higher fungal
frequency was recorded with A. niger (29.73%), while six fungal genera were identified
with dried grape samples as Alternaria, Aspergillus, Fusarium, Penicillium, Rhizopus, and
Trichoderma, where A. niger had the highest fungal frequency (49.06%). Test of
mycotoxins production presented that, ten A parasiticus isolates from dried apricot fruit
samples were aflatoxins producers. Eight Aspergillus isolates (A. flavus and A. parasiticus)
from dried figs fruit samples produced aflatoxins, and six A parasiticus isolates from dried
grape samples were positive producer of aflatoxins, whereas all Aspergillus niger,
Fusarium sp., and Penicillium sp. isolates from dried fruit samples were negative producer
of mycotoxins. It could be concluded that toxigenic fungi can attack the dried fruits and
cause their deterioration.

DOI

10.21608/jbes.2024.375050

Keywords

dried apricot, Dried fig, Dried grape, fungi, Mycotoxins

Authors

First Name

Mona M.

Last Name

Gouda

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Affiliation

Botany and Microbiology Department, Faculty of Science, Benha University, Benha, 13518, Egypt.

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First Name

Mohamed Hisham

Last Name

Yassin

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-

Affiliation

Botany and Microbiology Department, Faculty of Science, Benha University, Benha, 13518, Egypt.

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First Name

El-Sayed M.

Last Name

Embaby

MiddleName

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Affiliation

Plant pathology Department, Agriculture and Biological Research Institute, National Research centre, Dokki, 12622, Egypt.

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First Name

Marwa A.

Last Name

Younos

MiddleName

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Affiliation

Food Toxicology and Contaminants Department, Food Industry and Nutrition Research Institute, National Research Centre, Dokki, 12622, Egypt.

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First Name

Amira E.

Last Name

Sehim

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-

Affiliation

Botany and Microbiology Department, Faculty of Science, Benha University, Benha, 13518, Egypt.

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Volume

11

Article Issue

3

Related Issue

49701

Issue Date

2024-07-01

Receive Date

2024-08-20

Publish Date

2024-07-01

Page Start

219

Page End

240

Print ISSN

2536-9202

Online ISSN

2356-6388

Link

https://jbes.journals.ekb.eg/article_375050.html

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https://jbes.journals.ekb.eg/service?article_code=375050

Order

375,050

Type

Original Article

Type Code

3,063

Publication Type

Journal

Publication Title

Journal of Basic and Environmental Sciences

Publication Link

https://jbes.journals.ekb.eg/

MainTitle

Detection of Toxigenic Fungi Associated Some Dried Fruits

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Article

Created At

21 Dec 2024